semicartilaginous

sem·i·car·ti·lag·i·nous

(sem'ē-kar'ti-laj'i-nŭs),
Composed partly of cartilage.

semicartilaginous

(sĕm″ē-kăr″tĭ-lăj′ĭ-nŭs) [″ + cartilago, gristle]
Partially cartilaginous.